The Epidermal Growth Factor Family of Ligands and Receptors Grows and Grows

A Family That Grows From Within

Hydrolytic cleavage of large, inert proteins into smaller, active products is a common event in biology. The active products usually enjoy brief useful lifespans before they themselves are cleaved into inactive fragments. Prototypic participants in this process include clotting factors, complement, and digestive enzymes. Angiotensin II (Ang II) was the first polypeptide hormone recognized as th...

Why Government Grows (and Grows) in a Democracy

The Mind Grows Circuits

There is a vast supply of prior art that study models for mental processes. Some studies in psychology and philosophy approach it from an inner perspective in terms of experiences and percepts. Others such as neurobiology or connectionist-machines approach it externally by viewing the mind as complex circuit of neurons where each neuron is a primitive binary circuit. In this paper, we also mode...

Bioethics Grows Up

W hen I taught my first course in bioethics to first-year students at Columbia University's College of Physicians and Surgeons in the spring semester of 1981, bioethics was still in its formative years. There were scant few textbooks around and even fewer anthologies, and I could not assume that any of my students had ever read anything by a bioethicist or about bioethics. The key institutions ...

an investigation about the relationship between insurance lines and economic growth; the case study of iran

مطالعات قبلی بازار بیمه را به صورت کلی در نظر می گرفتند اما در این مطالعه صنعت بیمه به عنوان متغیر مستفل به بیمه های زندگی و غیر زندگی شکسته شده و هم چنین بیمه های زندگی به رشته های مختلف بیمه ای که در بازار بیمه ایران سهم قابل توجهی دارند تقسیم میشود. با استفاده از روشهای اقتصاد سنجی داده های برای دوره های 48-89 از مراکز ملی داده جمع آوری شد سپس با تخمین مدل خود بازگشتی برداری همراه با تعدادی ...